Unraveling Chemical Enrichment in Extreme Emission-Line Galaxies: A Multi-Element Bayesian View of Bursty Star Formation and Galaxy Evolution in DESI

Posted by klaurent MIT

Kavli Affiliate: Mark Vogelsberger | Summary:Extreme emission-line galaxies (EELGs) probe chemical enrichment in low-mass, bursty systems where star formation, feedback, and gas accretion are poorly constrained. Using DESI DR1, we select 23 nearby EELGs with detections of 19 ionic species (S/N $geq$ 4), stellar masses $ M_* geq 10^7 M_odot$, and extreme H$α$ and [O […]


Continue.. Unraveling Chemical Enrichment in Extreme Emission-Line Galaxies: A Multi-Element Bayesian View of Bursty Star Formation and Galaxy Evolution in DESI

Calibration-Induced Systematics in SALT3 Training and Their Impact on Dark Energy Constraints from Stage IV Supernova Surveys

Posted by klaurent Chicago

Kavli Affiliate: Richard Kessler | Summary:In the coming years, the Vera Rubin Observatory’s Legacy Survey of Space and Time (Rubin-LSST) and the Nancy Grace Roman Space Telescope’s (Roman) High Latitude Time Domain Survey (HLTDS) are expected to discover more than a million Type Ia supernovae (SNe Ia), several orders of magnitude more than current samples […]


Continue.. Calibration-Induced Systematics in SALT3 Training and Their Impact on Dark Energy Constraints from Stage IV Supernova Surveys

Calibration-Induced Systematics in SALT3 Training and Their Impact on Dark Energy Constraints from Stage IV Supernova Surveys

Posted by klaurent Chicago

Kavli Affiliate: Richard Kessler | Summary:In the coming years, the Vera Rubin Observatory’s Legacy Survey of Space and Time (Rubin-LSST) and the Nancy Grace Roman Space Telescope’s (Roman) High Latitude Time Domain Survey (HLTDS) are expected to discover more than a million Type Ia supernovae (SNe Ia), several orders of magnitude more than current samples […]


Continue.. Calibration-Induced Systematics in SALT3 Training and Their Impact on Dark Energy Constraints from Stage IV Supernova Surveys

Resolved UV-Optical HST Imaging and Spectral Energy Distribution Modeling of Nearby BAT Active Galactic Nuclei

Posted by klaurent Peking

Kavli Affiliate: Claudio Ricci | Summary:We use high-resolution UV-to-optical imaging from the Hubble Space Telescope (HST) to construct spatially resolved spectral energy distributions (SEDs) for seven nearby ($z<0.07$) hard (14–195$,$keV) X-ray-selected broad-line active galactic nuclei (AGN) with $L_rm bol=10^43.26-10^45.34,rmerg,s^-1$. The high spatial resolution of HST, which physically resolves structures on the scale of $sim$50$,$pc at […]


Continue.. Resolved UV-Optical HST Imaging and Spectral Energy Distribution Modeling of Nearby BAT Active Galactic Nuclei

Observation of field-odd and field-free superconducting diode effects in $mathrmMo_2mathrmC$ nanoflakes

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:The superconducting diode effect (SDE) enables nonreciprocal supercurrent flow, holding immense potential for ultra-low-power quantum electronics. Intrinsic SDE typically requires materials with inherent symmetry breakings. Here, we report the discovery of SDE in chemical vapor deposition-grown molybdenum carbide ($mathrmMo_2mathrmC$) nanoflakes, a material traditionally considered centrosymmetric. Strikingly, this system uniquely hosts both […]


Continue.. Observation of field-odd and field-free superconducting diode effects in $mathrmMo_2mathrmC$ nanoflakes

Observation of field-odd and field-free superconducting diode effects in $mathrmMo_2mathrmC$ nanoflakes

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:The superconducting diode effect (SDE) enables nonreciprocal supercurrent flow, holding immense potential for ultra-low-power quantum electronics. Intrinsic SDE typically requires materials with inherent symmetry breakings. Here, we report the discovery of SDE in chemical vapor deposition-grown molybdenum carbide ($mathrmMo_2mathrmC$) nanoflakes, a material traditionally considered centrosymmetric. Strikingly, this system uniquely hosts both […]


Continue.. Observation of field-odd and field-free superconducting diode effects in $mathrmMo_2mathrmC$ nanoflakes

HOTDISK. Finding Massive Protostellar Disks with Water and Refractory Molecular Species

Posted by klaurent Peking

Kavli Affiliate: Lile Wang |Summary:We present high-angular-resolution ($sim0.05^primeprime$, $sim 60-250$ au) ALMA Band~6 observations from the HOTDISK project (Hot-Origin Tracer survey of DISKs of massive protostars) aimed at investigating the "hot-disk" chemical pattern traced by vibrationally excited water, NaCl, SiS, and SiO in the innermost regions around massive protostars. Ten targets were selected based on […]


Continue.. HOTDISK. Finding Massive Protostellar Disks with Water and Refractory Molecular Species

HOTDISK. Finding Massive Protostellar Disks with Water and Refractory Molecular Species

Posted by klaurent Peking

Kavli Affiliate: Lile Wang |Summary:We present high-angular-resolution ($sim0.05^primeprime$) ALMA Band~6 observations from the HOTDISK project (Hot-Origin Tracer survey of DISKs of massive protostars) aimed at investigating the "hot-disk" chemical pattern traced by vibrationally excited water, NaCl, SiS, and SiO in the innermost regions around massive protostars. Ten targets were selected based on strong CH$_3$CN emission […]


Continue.. HOTDISK. Finding Massive Protostellar Disks with Water and Refractory Molecular Species

Merger rate of initially clustered primordial black holes for the two-body channel

Posted by klaurent Tokyo

Kavli Affiliate: Masahiro Kawasaki | Summary:Primordial black holes (PBHs) may form an initially clustered population depending on their production mechanism. Motivated by binary black-hole merger events observed by gravitational-wave interferometers, we revisit the evaluation of the merger rate of PBH binaries and extend the formalism to include the effects of clustering. We show that, in […]


Continue.. Merger rate of initially clustered primordial black holes for the two-body channel